Collections: Electronic diamond & gem testers
These cost from £19.50 to £950.00, yet there is no one machine that 100% guarantees you have a diamond or 'guarantees' the name of a gemstone - such machines simply do not exist. Browse several articles explaining what these machines can, and can't, do - all beautifully-written in plain English.
-
Multi tester for diamond, Moissanite, ruby, sapphire. Experior by Gemtrue
![]()
Free gift option
- Regular price
- £179.00
- Sale price
- £179.00
- Regular price
-
£199.50 - Unit price
- per
Out of stock -
Diamond Experior
![]()
Free gift option
- Regular price
- £82.50
- Sale price
- £82.50
- Regular price
-
- Unit price
- per
Out of stock -
SAM multi-tester
![]()
Free gift option
- Regular price
- £359.00
- Sale price
- £359.00
- Regular price
-
- Unit price
- per
Out of stock -
Arete synthetic-diamond tester by Gemtrue, 'Duo' model, includes a Diamond Experior tester
![]()
Free gift option
- Regular price
- £775.00
- Sale price
- £775.00
- Regular price
-
£895.00 - Unit price
- per
Out of stock -
Ari synthetic-diamond tester by Presidium
![]()
Free gift option
- Regular price
- £1,050.00
- Sale price
- £1,050.00
- Regular price
-
- Unit price
- per
Out of stock -
OTi (by Presidium) for diamonds (natural & synthetic) + non-diamond + Moissanite
![]()
Free gift option
- Regular price
- £1,250.00
- Sale price
- £1,250.00
- Regular price
-
£1,399.00 - Unit price
- per
Out of stock -
Diamond selector II (6 month guarantee)
![]()
Free gift option
- Regular price
- £24.50
- Sale price
- £24.50
- Regular price
-
- Unit price
- per
Out of stock -
Diamond selector II (3 month guarantee only)
![]()
- Regular price
- £12.50
- Sale price
- £12.50
- Regular price
-
- Unit price
- per
Out of stock -
Moissanite tester by GemTrue (Moissanite Plus)
![]()
Free gift option
- Regular price
- £79.00
- Sale price
- £79.00
- Regular price
-
- Unit price
- per
Out of stock -
Handheld presidium gem tester +3x AAA batt (model PGI)
![]()
Free gift option
- Regular price
- £319.00
- Sale price
- £319.00
- Regular price
-
- Unit price
- per
Out of stock -
Standard Presidium Electronic Gem Tester (model PGT II)
![]()
Free gift option
- Regular price
- £279.00
- Sale price
- £279.00
- Regular price
-
- Unit price
- per
Out of stock -
Presidium Duo gem tester (model PDT-II)
![]()
Free gift option
- Regular price
- £394.00
- Sale price
- £394.00
- Regular price
-
- Unit price
- per
Out of stock -
Digital refractometer by Presidium (model Prim II)
![]()
Free gift option
- Regular price
- £299.50
- Sale price
- £299.50
- Regular price
-
- Unit price
- per
Out of stock -
Set of sample diamond simulants
![]()
- Regular price
- £222.00
- Sale price
- £222.00
- Regular price
-
- Unit price
- per
Out of stock -
Calibration discs for Gemtest-PGI
![]()
Free gift option
- Regular price
- £39.50
- Sale price
- £39.50
- Regular price
-
- Unit price
- per
Out of stock -
Gemtest-PGI (probe)
![]()
Free gift option
- Regular price
- £58.80
- Sale price
- £58.80
- Regular price
-
- Unit price
- per
Out of stock -
Presidium standard+duo probe, new (after oct 2020) models
![]()
Free gift option
- Regular price
- £79.00
- Sale price
- £79.00
- Regular price
-
- Unit price
- per
Out of stock -
Presidium standard+duo probe, old (before oct 2020) models
![]()
- Regular price
- £79.00
- Sale price
- £79.00
- Regular price
-
- Unit price
- per
Out of stock -
Power Supply (for 240v UK mains)
![Power Supply (for 240v UK mains) - Photograph 2]()
- Regular price
- £15.00
- Sale price
- £15.00
- Regular price
-
- Unit price
- per
Out of stock -
Bottle of Isopropyl for cleaning stones
![]()
- Regular price
- £3.50
- Sale price
- £3.50
- Regular price
-
- Unit price
- per
Out of stock -
Cz (cubic zirconia).
![]()
- Regular price
- £5.90
- Sale price
- £5.90
- Regular price
-
£6.50 - Unit price
- per
Out of stock -
Set of 11 diamond colour-grading stones by Gemoro
![]()
Free gift option
- Regular price
- £239.00
- Sale price
- £239.00
- Regular price
-
- Unit price
- per
Out of stock
- Choosing a selection results in a full page refresh.
- Press the space key then arrow keys to make a selection.